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Multivariate cluster analysis of the MMPI-2 in chronic low-back pain patients
J L Riley1, M E Robinson, M E Geisser
1Department of Clinical and Health Psychology, University of Florida, Gainesville 32610-0165.
Objective:
The purpose of our study was to investigate whether Minnesota Multiphasic Personality Inventory-2 cluster solutions of chronic low-back pain patients would replicate those found in previous research with the Minnesota Multiphasic Personality Inventory.
Setting:
A multidisciplinary pain clinic in the southeastern United States.
Patients:
The subjects were 201 chronic low-back pain patients who had suffered a work-related back injury.
Outcome Measures:
The Minnesota Multiphasic Personality Inventory-2.
Results:
We found four relatively homogeneous subgroups of chronic low-back pain patients that were similar to those identified by previous researchers using data collected with the Minnesota Multiphasic Personality Inventory.
Conclusion:
These findings indicate that interpretations of the Minnesota Multiphasic Personality Inventory-2 should parallel those of the Minnesota Multiphasic Personality Inventory for chronic low-back pain patients. They further suggest that the results of Minnesota Multiphasic Personality Inventory-based studies are also applicable to Minnesota Multiphasic Personality Inventory-2.